Kariya, Japan

Akimitsu Sugiura

This inventor holds 58 USPTO granted patents and 7 EPO patents, primarily in Internal Combustion Engine (CPC class F02P). Top assignees: Denso Corporation, Nippondenso Co., Ltd., Plasma Applications Co., Ltd.. Active years: 1993-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akimitsu Sugiura. Retrieved from https://idiyas.com/inventor/akimitsu-sugiura

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 82.8

 

Average Co-Inventor Count = 2.8

ph-index = 4

Forward Citations = 65(Granted Patents)

Forward Citations (Not Self Cited) = 57(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Takahama, JP (1993 - 2006)
  • Nagoya, JP (2015 - 2020)
  • Kariya, JP (2017 - 2024)

Company Filing History:


Years Active: 1993-2024

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Areas of Expertise:
Spark Plug
Ignition Apparatus
Ignition System
Internal Combustion Engine
Ignition Control Device
Laser Ignition Device
Ignition Control System
Ignition Control Apparatus
Plasma Generation
Hydrophilic Membrane
Manufacturing Method
58 patents (USPTO):Explore Patents

Title: Innovations by Akimitsu Sugiura: A Leader in Spark Plug Technology

Introduction: Akimitsu Sugiura is a notable inventor based in Kariya, Japan, recognized for his significant contribution to spark plug technologies. With an impressive portfolio of 58 patents, Sugiura has made remarkable advancements in the field of internal combustion engines, particularly in the design and functionality of spark plugs and ignition apparatus.

Latest Patents: Among Sugiura's most recent innovations are two key patents that enhance the performance of internal combustion engines. The first patent involves a spark plug that includes a cylindrical insulator and a center electrode, which protrudes toward the tip end. This spark plug also features a ground electrode, creating a discharge gap that improves ignition efficiency. Additionally, it incorporates a plug cover with an injection hole to facilitate communication between the pre-combustion chamber and the external environment.

The second notable innovation is an ignition apparatus designed for internal combustion engines. This system includes a spark plug, an ignition coil, and a controller that perform a multiple-discharge mode. This mode generates multiple discharges within a critical time frame, optimizing ignition during the engine's compression and expansion strokes.

Career Highlights: Akimitsu Sugiura has had a successful career in the automotive industry, contributing to major advancements in engine technology. He has worked with leading companies such as Denso Corporation and Nippondenso Co., Ltd., where he further explored and developed innovative solutions in spark plug technology.

Collaborations: Throughout his career, Sugiura has collaborated with fellow inventors and industry experts, including Fumiaki Aoki and Shota Kinoshita. These collaborations have undoubtedly contributed to the successful development of his innovations and have enhanced the research and application of effective ignition systems in modern vehicles.

Conclusion: Akimitsu Sugiura stands out as a pioneering inventor in the automotive sector, particularly in the area of ignition systems for internal combustion engines. His 58 patents reveal a commitment to innovation and excellence, driving advancements that will likely shape the future of engine technology. As he continues to push the boundaries of engineering, Sugiura remains a significant figure in the field of automotive inventions.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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